Stable jets of viscoelastic fluids and self-assembled cylindrical capsules by hydrodynamic focusing

K. V. Edmond, Andrew B Schofield, Manuel Marquez, J. P. Rothstein, A. D. Dinsmore

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

We demonstrate formation of long-lived cylindrical jets of a viscoelastic fluid using hydrodynamic focusing. A solution of polyacrylamide in water is driven coaxially with immiscible oil and subjected to strong extensional flow. At high flow rates, the aqueous phase forms jets that are 4-90 mu m in diameter and several centimeters long. The liquid surfaces of these jets are then used as templates for assembly of microspheres into novel rigid and hollow cylinders.

Original languageEnglish
Pages (from-to)9052-9056
Number of pages5
JournalLangmuir
Volume22
Issue number21
DOIs
Publication statusPublished - 10 Oct 2006

Keywords / Materials (for Non-textual outputs)

  • COLLOIDAL PARTICLES
  • LIQUID INTERFACES
  • ELECTRIC-FIELD
  • BREAKUP
  • RHEOMETRY
  • DEVICE
  • SHELLS
  • FLOW
  • MICROFLUIDICS
  • COLLOIDOSOMES

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